galpy.df.streamdf.meanOmega

streamdf.meanOmega(dangle, oned=False, offset_sign=None, tdisrupt=None)[source]

Calculate the mean frequency as a function of angle, assuming a uniform time distribution up to a maximum time.

Parameters:

  • dangle (float) – Angle offset.

  • oned (bool, optional) – If True, return the 1D offset from the progenitor (along the direction of disruption). Default is False.

  • offset_sign (None, optional) – Sign of the frequency offset. Default is None.

  • tdisrupt (float, optional) – Maximum time. Default is None.

Returns:

Mean Omega.

Return type:

float or Quantity

Notes

  • 2013-12-01 - Written - Bovy (IAS)